Driving mechanism for centrifugal cream-separators.



N6.'888,634. v PATENTED-MAY26, 1908. f 'T.W.-MORGAN.- DRIVI-NG MECHANISMFOR-GENTRIFUGAL CREAM SBPARATORS.

APPLICATION FILED MAY 11. 1907.

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WITNESSES: .1 x I VINVBNTOR Th0ma\ s-W=.J){organ,

v PATENTED MAY 2 1908. -J Tyw. MORGAN." DRIVING-MECHANISM FORGBNTRI'PUGAL CREAM SEPARAIORS.

APPLIGATIONIILED MAY 11,1907.

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v INVENTOR Thomas W. Morgan,

- WITNESSES:

r v A RNEY hurries snares PATENT OFFICE. i

THOMAS W. MORGAN, OF WATERLOO, IOWA ASSIGNOR TO WILBUR W. MARSH, OFWATERLOO,

. IOWA.

Application filed May 11,

To all 'llJhOflt-fli may concern:

Beit known that I, THOMAS W'. MORGAN,

. a citizen of the United States of America, and

a resident of Waterloo, Blackhawh county,

, Iowa have invented certain new and useful Improvements Driving.Mechanism for Centrifugal Cream-Separators, of which the.

following is a specification.

My invention relates toimprovementsin driving mechanism for centrifugalcream separators, and the object of my improvements is to iurnishlasimple combination of coacting spiraland spur-gearing, having anintermediate ratchet connection or toothed device for disconnecting theinteracting gear-. ing when desired. This object I have accomplished "bythe means which are herein after described and claimed, and which areillustrated in the accompanying drawings, in whichv v Figure 1 is a viewin perspective of my improved driving-mechanism in operative connectionwith the bowl of a centrifugal cream separator; Fig. 2 is an endelevation of said mechanism; Fig. '3 is a central vertical axial sectionof the toothed disconnecting device,

and Fig. 4 is an under plan view of the toothed face of said device.

Similar numbers refer to similar parts throughout the several views.

I have shown in Fig. 1 the bowl 1 of a centrifugal cream separatorhaving a spindle provided with a spiral thread at its lower end. Thelower extremity of said spindle is diminished in diameter and seated ina bearmg 4 1n the base-plate 5.

6 is a spur-gear-wheel adapted to have its teeth intermesh .with thespiral threads on the spindle 2, by. being inclined to a proper degree,as shown in Fig. 2, to the axis of said spindle. In this position, suchteeth engage such spiral-threads'at the proper angle to cause them tomake the most cli'ective. contact therewith, .the resultibeing that morethan. one of these spiral threads engage a similar number of spur-teethat the same time, thus distributing frictional contact over a largersurface than would be the case were a spur-pinion and gear-wheel to beintermeshing. The s -iui gear-wheel Gwith its downwardly eXten ing hub15 is rotatable on the rotatable shaft 10 set in the upper seat andlower seat 11 and 16. A spiral. pin- Specification off-Letters Patent.

, Patented May 26, 1908.

1907- Serial N0. 373,186.

ion'g iis' fixedly mounted onsaid shaft 10 just above thespurear-wheel6,'and intermeshes with the teeth 01 the s'pur-geamwheel12, said its own axis is inclined to the axis of the spine die 2 Theintermeshingcontact between. the teeth of the spur-gear-wheel l2a'nd'the spiral-gear 9 is thus the same as the contact gear-wheelteethfi.v The spur-gear-whee 12 is fixedly' mounted one vertical shaft13', whose lower end is step edina seat 14, rotatably. As shown'in ig.2, the upper end of the shaft 13 has a'bevel-pinion 19 secured -teeth ofa bevel-gear-wheel 20 afiixed to a horizontal'shaft 21. A crank 22,provided with a handle 23, is secured to said shaft 21, for drivingurposes. In order to provide means Where ysaid crank 22 may be sto pedin mid-course of rotation, I have provi ed a device for disconnectingthe. gearing above described. The spiral-gear-wheel 9 has at its lowerend a hub or enlargement 8, whose lower surfaceii's so hollowed out asto provide the teeth 24 andea. .But two such teeth are shown, althoughit is [obvious that a greater number mi ht be used if desired. Thetoothed surr ace of the hub 8 rests directly upon the upper wheel-6.

18 is a hole drilled within the above as shown in Fig. 3, and is used asa seat for the slidable pin 7 which fits perfectly the hole 18, the pin7 resting upon the spring, the resilient action of the latter tending tothe hub 8. When the crank 22, gearing 19-20, shaftf1?;fgear-wheel12 andspiral pinion 9 are rotated in one direction, the nearest toothonsaidhub 8 engages the upper end of the pin 7 and carries it around, t usof gearing, (land 3. When the crank 22 is held so as to stop the motionof the gearwheels 12 and 9, the balance of the tram rotation, the pin 7m :lv being pushed d own into the hole 1 8 when it moves p st onespiralinion 9 beingsetfai the same angle with t e'axis or" thespurgear-wheel-m, asf

betweenthe spiral threads' hiand the s ur'-- thereto, whose teethintermeshwith the surface of the spur-gear-.

wheel fi from imparting rotation to the balance of the train.

within it. A spiral spring 1.7 is placed within always elevate one endof the pin above the 7 upper surface. of the wheel 6 so as -to engagewith one of the teeth on'the lower surface of Y .-with. the bowl 1continues in uninterrupted to be elevated when the fixed stud aforesaidpasses under it when. the spiral-pinions motion is arrested. The ei'iectupon the action of the mechanism is identical in either case. ,.Havingdescribed my invention, what I claim as new, and desire to securebyLetters Patent, is

1. In combination, a driven shaft, a spurgear-wheel secured thereon, arotatable and slidable shaft, a spiral pinion secured thereon andintermeshing with the said spurg'ear -wheel, said spiral pinion havingalowerpor-tion of greater diameter with a ,ratche'te'd under surface, aspur-gear-wheel rotatably mounted on said rotatable shaft below saidspiral pinion and havin a projecting'pin adapted to engage the teeth onsaid spiral pinions ratcheted lower surface, and a spiral pinion in meshwith the latter spur-gear-wheel.

2. in combination, a rotatable shaft, a bevel-gear-wheel securedthereon, a rotatable shaft, a bevel pinion secured thereto adapted tointer-mesh with said bevel-gear-wheel, a tspur-gear-wheel secured to thelatter shaft, a rotatable shaft set at an inclination to said lattershaft, a spiral-pinion integrally connected to the last-mentioned shaft,a spurgear-wheel rotatably mounted on said last mentioned shaft, aclutch-coupling connected between said spiral-pinion and the lastmeneeaese tioned spur-gear wheel, and a spiral pinion in mesh with saidlast mentioned spur-gearwheel. y

' 3. In combinatioma driven shaft, a spur-- gear-wheel secured thereon,a rotatable shaft, a spiral-pinion fixedly secured thereto and in meshwith said spur-gear-wheel, said spiralpinion having an enlarged basewith radial teeth on its under surface, a spur-gear-wheelrotatably'mounted below said spira1-pinion on said rotatable shaft, andhaving a bearinghole in its upper surface, a compression spring in saidbearing hole, a slidable pin in said bearing hole over said spring, theouter end of said pin normally projected beyond the outer surface of thespur-gear-wheel by -the action of said spring and adapted to engage atooth on the base of the spiral-pinion when the latter is rotated in onedirection but be driven by such teeth'into said bearinghole when therotation of such spiralpinion is arrested, and a spiral pinion in meshwith the last mentioned spur-gear-wheel.

4. In combination, a spur-gear-wheel, a spiral-pinion in mesh therewithmounted on a rotatable shaft, a spur-gear-wheel rotatably mounted on-thesame shaft with the s iralpinion, and a s(pira l-pinionin mesh wit thelast-mentions spur-gear-wheel, and a ratchet-Eofipling interposed at adesired place in said train of; gearing adapted to be disconnested whenthe rotation of the said first- 1nentioned sphr-gear-Wheel is arrested.

Signed at Waterloo, Iowa, this 23d day of Aprii 1907.

THOMAS WIMORGAN. Witnesses:

O. DJVYOUNG, G. G. KE NEDY.

